Switched-mode power supply

Natural convection cooling when horizontally mounted

Stepped profile, ideal for distribution boards/boxes

Suitable for both parallel and series operation

Electrically isolated output voltage (SELV) per EN 60950-1/UL 60950-1

Control deviation: ±1 % (±10 % within the application range of EN 50121-3-2)

Suitable for railway applications

Input

Nominal input voltage Ui nom DC 110 V

Input voltage range DC 77 … 140 V

Nominal mains frequency range 0 Hz

Input current I

i ≤ 0.77 A (77 VDC); ≤ 0.42 A (140 VDC)

Discharge current ≤ 1 mA

Inrush current ≤ 30 A (NTC)

Mains failure hold-up time ≥ 8 ms (77 VDC); ≥ 25 ms (140 VDC)

Output

Nominal output voltage Uo nom DC 24 V (SELV)

Default setting DC 24 V

Nominal output current I

o nom 2 A (24 VDC); 1.6 A (in any mounting position)

Nominal output power 48 W

Deviation ≤ 1 %

Residual ripple ≤ 100 mV (peak-to-peak)

Current limitation 1.1 x I

o nom (typ.)

Overload behavior Constant current